outline.c revision 1.7
1/* Read an XML document from standard input and print an element 2 outline on standard output. 3 Must be used with Expat compiled for UTF-8 output. 4 __ __ _ 5 ___\ \/ /_ __ __ _| |_ 6 / _ \\ /| '_ \ / _` | __| 7 | __// \| |_) | (_| | |_ 8 \___/_/\_\ .__/ \__,_|\__| 9 |_| XML parser 10 11 Copyright (c) 1997-2000 Thai Open Source Software Center Ltd 12 Copyright (c) 2000-2017 Expat development team 13 Licensed under the MIT license: 14 15 Permission is hereby granted, free of charge, to any person obtaining 16 a copy of this software and associated documentation files (the 17 "Software"), to deal in the Software without restriction, including 18 without limitation the rights to use, copy, modify, merge, publish, 19 distribute, sublicense, and/or sell copies of the Software, and to permit 20 persons to whom the Software is furnished to do so, subject to the 21 following conditions: 22 23 The above copyright notice and this permission notice shall be included 24 in all copies or substantial portions of the Software. 25 26 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 27 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 28 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN 29 NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 30 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 31 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 32 USE OR OTHER DEALINGS IN THE SOFTWARE. 33*/ 34 35#include <stdio.h> 36#include <expat.h> 37 38#ifdef XML_LARGE_SIZE 39# define XML_FMT_INT_MOD "ll" 40#else 41# define XML_FMT_INT_MOD "l" 42#endif 43 44#ifdef XML_UNICODE_WCHAR_T 45# define XML_FMT_STR "ls" 46#else 47# define XML_FMT_STR "s" 48#endif 49 50#define BUFFSIZE 8192 51 52char Buff[BUFFSIZE]; 53 54int Depth; 55 56static void XMLCALL 57start(void *data, const XML_Char *el, const XML_Char **attr) { 58 int i; 59 (void)data; 60 61 for (i = 0; i < Depth; i++) 62 printf(" "); 63 64 printf("%" XML_FMT_STR, el); 65 66 for (i = 0; attr[i]; i += 2) { 67 printf(" %" XML_FMT_STR "='%" XML_FMT_STR "'", attr[i], attr[i + 1]); 68 } 69 70 printf("\n"); 71 Depth++; 72} 73 74static void XMLCALL 75end(void *data, const XML_Char *el) { 76 (void)data; 77 (void)el; 78 79 Depth--; 80} 81 82int 83main(int argc, char *argv[]) { 84 XML_Parser p = XML_ParserCreate(NULL); 85 (void)argc; 86 (void)argv; 87 88 if (! p) { 89 fprintf(stderr, "Couldn't allocate memory for parser\n"); 90 exit(-1); 91 } 92 93 XML_SetElementHandler(p, start, end); 94 95 for (;;) { 96 int done; 97 int len; 98 99 len = (int)fread(Buff, 1, BUFFSIZE, stdin); 100 if (ferror(stdin)) { 101 fprintf(stderr, "Read error\n"); 102 exit(-1); 103 } 104 done = feof(stdin); 105 106 if (XML_Parse(p, Buff, len, done) == XML_STATUS_ERROR) { 107 fprintf(stderr, 108 "Parse error at line %" XML_FMT_INT_MOD "u:\n%" XML_FMT_STR "\n", 109 XML_GetCurrentLineNumber(p), 110 XML_ErrorString(XML_GetErrorCode(p))); 111 exit(-1); 112 } 113 114 if (done) 115 break; 116 } 117 XML_ParserFree(p); 118 return 0; 119} 120